1. Chapter 37

2. J. J. Thomson’s conclusion that cathode ray particles are fundamental constituents of atoms was based primarily on which observation? 1. They have a negative charge. 2. They are the same from all cathode materials. 3. Their mass is much less than hydrogen. 4. They penetrate very thin metal foils.

3. J. J. Thomson’s conclusion that cathode ray particles are fundamental constituents of atoms was based primarily on which observation? 1. They have a negative charge. 2. They are the same from all cathode materials. 3. Their mass is much less than hydrogen. 4. They penetrate very thin metal foils.

4. If the alpha particle has a positive charge, which way will it be deflected in the magnetic field? 1. Up 2. Down 3. Into the page 4. Out of the page

5. If the alpha particle has a positive charge, which way will it be deflected in the magnetic field? 1. Up 2. Down 3. Into the page 4. Out of the page

6. Carbon is the 6 th element in the periodic table. How many electrons are there in a C ++ ion? 1. 2 2. 4 3. 6 4. 8

7. Carbon is the 6 th element in the periodic table. How many electrons are there in a C ++ ion? 1. 2 2. 4 3. 6 4. 8

8. Carbon is the 6 th element in the periodic table. How many neutrons are there in a nucleus of the isotope 14 C? 1. 2 2. 4 3. 6 4. 8

9. Carbon is the 6 th element in the periodic table. How many neutrons are there in a nucleus of the isotope 14 C? 1. 2 2. 4 3. 6 4. 8

10. These spectra are due to the same element. Which one is an emission spectrum and which is an absorption spectrum? 1. (a) is emission, (b) is absorption. 2. (b) is emission, (a) is absorption. 3. there is not enough information to tell.

11. These spectra are due to the same element. Which one is an emission spectrum and which is an absorption spectrum? 1. (a) is emission, (b) is absorption. 2. (b) is emission, (a) is absorption. 3. there is not enough information to tell.

12. Chapter 37 Reading Quiz

13. What kind of drops did Millikan use to measure the fundamental unit of charge? 1. Rain drops 2. Oil drops 3. Eye drops 4. Methyl drops 5. Cough drops

14. What kind of drops did Millikan use to measure the fundamental unit of charge? 1. Rain drops 2. Oil drops 3. Eye drops 4. Methyl drops 5. Cough drops

15. The electron volt is a unit of 1. charge. 2. energy. 3. potential. 4. atomic power. 5. atomic size.

16. The electron volt is a unit of 1. charge. 2. energy. 3. potential. 4. atomic power. 5. atomic size.

17. The discoverer of the electron was 1. Edison. 2. Millikan. 3. Einstein. 4. Rutherford. 5. Thomson.

18. The discoverer of the electron was 1. Edison. 2. Millikan. 3. Einstein. 4. Rutherford. 5. Thomson.